Chamber-flushing device



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Patented Nov. 11, 1930 PATENT OFFICE LAWRENCE W. PECK, CHICAGO, ILLINOIS CHAMBER-FLUSHING DEVICE Application filed January 25, 1929.

This invention relates to improvements in devices for facilitating cleaning substantially closed chambers, especially those containing heavy lubricants, such as crank cases, differential housings, and the like.

Primarily, the device is one wherein suction is utilized for withdrai ing the lubricant or other material from the chamber or housing, although, if desired, the device is capable of being used to flush out the chamber with a cleaning or flushing "fluid. Specifically, the device comprises a container for the flushing fluid and a reservoir into which the material from the chamber or housing is deposited.

Combined withsaid container and reservoir is means by which the flushing fluid may be drawn from its container and delivered into the housing from which it, together with the lubricating material, will drain into the reservoir or, if desired the flushing fluid may as used to create a vacuum in a pipe adapted to project into the housing, wherein the lubricant will be drawn by suction out of said housing. Under these conditions the lubricant and flushing fluid will also be delivered to the reservoir.

An object of the invention is to assemble the several parts whereby they may be handled as a unit.

With these and other objects in view the invention consists in certain details of construction and combinations and arrangements of parts all. will hereinafter be more fully described and the novel features thereof particularly pointed out in the appended. claims.

In the accompanyingdrawings, consisting of one sheet, the device is shown in vertical cross section.

As illustrated, there is a reservoir 10, the bottom of said reservoir being formed by a Said reservoir is open at its top and in the interior thereof there is a screen 12.

Detachably secured on base block 11 is a container or receptacle 13 for a suitable flushing fluid, a vent pipe 14 being provided therein and extending from said block down into said receptacle is an outlet pipe 16. Concentrically arranged with respect to pipe 16 and communicating with a duct in said block is a somewhat longer pipe 17 whose upper end Se 19.1 No. 334,952.

Extending transversely ofblock 11 and merging into duct- 15 is a duct 19 threaded at its exterior end for attachment of a nipple 20 to which an air line is adapted to be connected. By supplying air under pressure through ducts 15, 19 and pipe 17, flushing fluid willbe drawn upwardly from container 13 and discharged through the upper end of said pipe into casting 18. Said casting is provided with an outlet pipe 21 that discharges into reservoir 10 above the filtering screen. Arranged concentrically within pipe 21 and projecting above casting 18 there is a suction pipe 22, the upper end thereof being threaded for attachment of a flexible hose member 23. Pipes 1'? and 22 are of the same size whereby said hose 23 is interchangeably attachable to either of said pipes.

With the various parts assembled, as shown, flushing fluid delivered to casting 18, as just disclosed, will be conveyed under pressure through discharge pipe 21, thereby creating a vacuum in pipe 22 and hose 23 so that if the latter has been inserted in the drain opening of a differential housing or the like, the lubricant in said housing will be drawn off, and discharged into the reservoir togethor with the flushing fluid. If desired, however, the casting 18 may be detached and hose 23 attached directly to pipe 17 and the reservoir 10 placed immediately below the drain opening of the housing. Under these conditions, the flushing fluid will be conveyed through said hose into the housing and the latter flushed out, the materials draining through the drain opening of the housing into reservoir 10. By performing these two operations successively, the differential can be thoroughly cleansed.

As will be apparent, the base block 11 forms the support for all of the cleaning fluid delivery means regardless of the manner in which the device is used. This is advantageous in that the entire apparatus may always be handled as a unit, handles 24 being provided on both the reservoir 10 and receptacle 13 for this purpose.

into said reservoir.

hat I claim is: i

1. In a device for cleaning differential housings and the like, a reservoir for materials flushed from the housing, a block in the base of said reservoir, a receptacle for a cleaning fluid attached to said block, concentrically arranged pipes supported in said block, the inner pipe extending into said receptacle, means 'iordelivering airunder pressure to the outer pipe, a hollow casing on the outer pipe, concentrically arranged pipes secured in said casing, and a flexible tubular member interchangeably attachable to the outer pipe of the first mentioned pair of pipes and theinner pipe of the second pair.

2. In a device for cleaning difierential housings and the like, areservoir for materials flushec from the housing,-axblock in the base of said reservoir, a receptacle-for a cleanfiuid attached to said block, a hollow casin supported by said block, an outlet pipe from said casing, a suction pipe in said casing extendii-ig into said outlet pipe, a flexible tubular member attached to said suction pipe and adapted to be insertedfinto the difierential housing, and means for delivering the cleaning'fiuidfroin its receptacle to said outlet pipeunder pressure to create a vacuum in said suction pipe.

3. In a device for cleaning diiferential housings and'the like, a reservoir for materials fiusliedfroin the housing, a block in the base of said reservoir,'a receptacle for a cleaning fluid attached to said block, a hollow casing supported by said block, an outlet pipe fronisaid' casing, a suction pipe in said casing extending into said outlet pipe, a flexible tubular memberattached to said suction pipe and adapted to be inserted into the differential housing, and means for delivering the cleaning fluid from its receptacle'tofsaid outlet pipe under pressure to create a vacuum in said suction pipe, said outlet pipe discharging LAWRENCE W. P EcK, 

